Clutch and flywheel combination for motor-vehicle engines



July 259 1924.

- T. B. MURRAY CLUTCH AND FLYWHEEL COMBINATION FOR MOTOR VEHICLE ENGINES Filed Sent. 20. 1923 hawk/ 17 019. A '777 0/Ms 54 mWam-MMRM- 5 his 14mm Patented my 29, 1924.

uNrrEo sra ras PATENT orrica.

' THOMA$ BLACKWOOD MIIRRAY, OF LIPHOOK, ENGLAND.

cmrrcn hm) FLYWHEEL comma'rron roa MOTOR-VEHICLE ENGINES.

Application filed September 2t), 1828.- Serial No. 668,813.

To all whom it may 0mm.-

Be it known that I, THOMAS BnAoxwoon MURRAY, a subject of the King of Great Britain and Ireland, and aresident of Lip-- hook, Hampshire, England, have invented certain new and'useful Clutch and F1 wheel Combinations for Motor-Vehicle Engines, of which thefollowing is the specification.

vThe invention relates to internal combustion engines for motor vehicles and the combination with their flywheels of clutch and clutch-operating mechanism in suchwise as to afford certain structuraladvantages and certain facilities in thedesignand construction of flexible joints and other elements behind the, clutch.

According to the invention the clutchoperating mufi' or equivalent device (which may be of any convenient form) is located on the crank shaft (whichmay be extended to acco-modate it) between the flywheel and the adj acent'end of the engine casing, while i the usual cross-shaft, which is operatively lvenient manner, permitting of the passage of the mufl'. Alternatively, the muff in its entirety or certain members thereof may be split longitudinally so that it may be assembled on the shaft without the necessity for disturbing the flywheel.

- -The muif device and its alliedvparts may be applied for the operation of any usual type of friction clutch. Very conveniently the mufl may be connected to the member of'the clutch which it operates by levers and push rods or like devices parallel with the axis of the shaft and passing throughthe web or hub of the flywheel. I

When the device is applied to-a clutch ofthe type in which the driven member is a disc and the driving members consist jointly of a face on the fl wheel andlan annular disc carried thereby etween which the driven disc is gripped, the annular disc is opera-ted for disengagement by push-rods carried by th fl wheel near its. 'eri her and which e y p p y a clutch carried thereby, a clutch operating are engaged by levers pivoted near the p r riphery of the flywheel and extending radi all inwards to be engaged by the mufl.

example-of the carrying out of the invention is shown in half sectional elevation in an accompanying sheet of drawings. In this example t e clutch is of the dlsc type and consists of a-.thin steel disc A supported on a s ider, B spigoted into the,

engine crank-sha t C and connected to a coaxial shaft D''the primary gear-box shaft or an extension 'thereof-by a usual flexible ring coupling E. Near its periphrings F, G'the one (F) carried in a casing H from the flywheel I, the other (G) carried on a bearer rin J upon plungers K passing through an carried in the web of the flywheel I. The ring G is urged towards the ring F for engagement of the disc A by springs (not shown) as usual and the withdrawal mechanismwhich is the subject of the invention-is apglied to the projecting ends of the plungers This withdrawal mechanism consists of a series of levers L each pivoted in a braclzet M bolted to the flywheel web and engaging at its outer and shorter end between an antiery this disc is engaged between friction rattle washer N loaded by a spring 0 and an adjustable serratedwasher and nut device P screwed on the plunger K.

At the end of .its inner and longer arm,

each lever L is engaged by the face of a -mufi B, which may very conveniently be uip ed with a ball bearing, sliding freely i l th crank-shaft C of the engine and engaged in turn on its opposite face by. stirrup levers S on a shaft T mounted in brackets II on theengine casing V and upon which shaft is-mountedalso the usual pedal W.

What I claim is:' f

"1. A clutch and engine crank shaft and flywheel combination comprising a flywheel,

a clutch carried thereby, a clutchoperating I mufi' located on the crank shaft between the flywheel and the engine casing, a clutch:

pedal cross-shaft, brackets on the I engine casin carrying the shaft, stirrup leverson the, s aft and. operating the muff, levers" pivoted on the flywheel and engaged at their mner ends by the muff, and operative con-1 nections between the outer ends of these levers and the clutch. v 2.,A clutch and engine crankshaft and flywheel combination comprising a flywheel,

mii'fi located on the crank shaft between the wheel, a ring carried by the plungers and flywheel an& the engine ca'sing, a clutchengeginge. disc on the flywheel, the plungers 10 pedal cross-shaft, 'brackets on the engine being engaged by the outer ends of the casing carrying theshaft, stirrup levers" on levers} the shaft and operating the mufi, levers In testimony whereof I have signed my pivoted on the flywheel and. engaged at their name to this specification.

inner ends by the mufl, plun ers passing through and carried in the we of the fiye T. BLACKWOOD 1 RAY. 

